Bay Drainage
Long-established Bay Area drainage specialist with BBB A+ accreditation and explicit sump, backup, alarm, French-drain, and crawlspace services.
Who runs it
- David Wilson ✓ Owner
Credentials & verification
- State license
- #626918, unverified, re-check with board
- BBB
- [object Object]
- Years in business
- 34
Services
Service area
Danville · East Bay · San Francisco Bay Area · Alameda County · Contra Costa County · Marin County · Napa County · San Francisco County · San Mateo County · Solano County · Sonoma County
Reviews (per platform, unblended)
Our verification notes
The company contact page describes a 10-mile service radius, while BBB lists a much broader multi-county service area; confirm travel coverage. No FEMA grant or CFM evidence found. Google rating was not reliably findable.
Sources checked
- BBB business profile
- Blue Book trade listing and owner
- MapQuest/Yelp business listing
Last verified 2026-07-14. This is an independent listing, not an endorsement, and we are not affiliated with Bay Drainage. Confirm the current license, insurance and references directly before signing any contract.
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